code: def read(self, size=-1):
      if not self._initialized:
          self._read_init()
          self._initialized = True
      return self._reader.read(size)
  
imports: import asyncio
  from io import UnsupportedOperation
  import logging
  import sys
  from typing import Dict, List, Optional, Tuple
  from ..lib import sparse
  from ..resource import virtual_memory
  from ..utils import implements, lazy_import, calc_size_by_str
  from .base import StorageBackend, StorageLevel, ObjectInfo, register_storage_backend
  from .core import BufferWrappedFileObject, StorageFileObject
label_desc: Use image node_id 5 for calling the VineyardFileObject obj's underlying member method code with example usage: obj.read(size) and returns: self